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Abstract:

The present invention provides a method and device for processing a QoS
parameter in a subscription service combination scenario. The method
includes: determining a subscribed APN corresponding to an alias APN,
where the alias APN is obtained by a mobility management network element
according to an APN in an access request of a UE and according to
acquired correspondence between a subscribed APN and an alias APN of the
UE; and determining a QoS parameter of the alias APN according to a QoS
parameter of the subscribed APN. Embodiments of the present invention can
provide a solution for processing a QoS parameter in subscription service
combination.

Claims:

1. A method for processing a quality of service (QoS) parameter in a
subscription service combination scenario, comprising: determining a
subscribed APN corresponding to an alias access point name (APN), wherein
the alias APN is obtained by a mobility management network element
according to an APN in an access request of a user equipment (UE) and
according to acquired correspondence between a subscribed APN and an
alias APN of the UE; and determining a QoS parameter of the alias APN
according to a QoS parameter of the subscribed APN.

2. The method according to claim 1, wherein the QoS parameter comprises
an access point name aggregate maximum bit rate (APN-AMBR).

3. The method according to claim 1, wherein the determining the QoS
parameter of the alias APN according to the QoS parameter of the
subscribed APN comprises: using an accumulated value as the QoS parameter
of the alias APN, wherein the accumulated value is an accumulated value
of: a QoS parameter of a subscribed APN that is being activated currently
and corresponds to the alias APN, and a QoS parameter of an already
activated subscribed APN corresponding to the alias APN; or using a
maximum value as the QoS parameter of the alias APN, wherein the maximum
value is a maximum value of: a QoS parameter of a subscribed APN that is
being activated currently and corresponds to the alias APN, and a QoS
parameter of an already activated subscribed APN corresponding to the
alias APN; or using an accumulated value of QoS parameters of all
subscribed APNs as the QoS parameter of the alias APN, wherein all the
subscribed APNs correspond to the alias APN; or using a maximum value of
QoS parameters of all subscribed APNs as the QoS parameter of the alias
APN, wherein all the subscribed APNs correspond to the alias APN.

4. The method according to claim 1, wherein when an executor of the
method is the mobility management network element, the method further
comprises: sending, by the mobility management network element, a create
session request to a serving gateway entity (SGW) or a packet data
gateway entity (PGW) corresponding to the alias APN, wherein the create
session request contains the alias APN and the QoS parameter of the alias
APN; and sending, by the mobility management network element, the alias
APN and the QoS parameter of the alias APN to the UE.

5. The method according to claim 4, further comprising: acquiring, by the
mobility management network element, the QoS parameter of the subscribed
APN from a home subscriber server (HSS).

6. The method according to claim 1, wherein when an executor of the
method is an SGW or a PGW, the method further comprises: sending, by the
SGW or PGW, the alias APN and the QoS parameter of the alias APN to the
mobility management network element through a create session response
message, wherein the mobility management network element sends the alias
APN and the QoS parameter of the alias APN to the UE.

7. The method according to claim 6, further comprising: acquiring, by the
SGW or PGW, the QoS parameter of the subscribed APN from a create session
request sent by the mobility management network element.

8. The method according to claim 1, wherein when an executor of the
method is a policy and charging rule function entity (PCRF), the method
further comprises: sending, by the PCRF, the alias APN and the QoS
parameter of the alias APN to an SGW or a PGW through an IP-connectivity
access network (IP-CAN) session establishment procedure message, so that
the SGW or PGW sends the alias APN and the QoS parameter of the alias APN
to the mobility management network element through a create session
response message, and the mobility management network element sends the
alias APN and the QoS parameter of the alias APN to the UE.

9. The method according to claim 8, further comprising: acquiring, by the
PCRF, the QoS parameter of the subscribed APN from the IP-CAN session
establishment procedure message sent by the SGW or POW.

10. A device for processing a quality of service (QoS) parameter in a
subscription service combination scenario, comprising: an acquisition
module, configured to determine a subscribed APN corresponding to an
alias access point name (APN), wherein the alias APN is obtained by a
mobility management network element according to an APN in an access
request of a UE and according to acquired correspondence between a
subscribed APN and an alias APN of the UE; and a determination module,
configured to determine a QoS parameter of the alias APN according to a
QoS parameter of the subscribed APN.

11. The device according to claim 10, wherein the determination module
comprises: a first unit, configured to use an accumulated value as the
QoS parameter of the alias APN, where the accumulated value is an
accumulated value of: a QoS parameter of a subscribed APN that is being
activated currently and corresponds to the alias APN, and a QoS parameter
of an already activated subscribed APN corresponding to the alias APN; or
a second unit, configured to use a maximum value as the QoS parameter of
the alias APN, wherein the maximum value is a maximum value of: a QoS
parameter of a subscribed APN that is being activated currently and
corresponds to the alias APN, and a QoS parameter of an already activated
subscribed APN corresponding to the alias APN; or a third unit,
configured to use an accumulated value of QoS parameters of all
subscribed APNs as the QoS parameter of the alias APN, wherein all the
subscribed APNs correspond to the alias APN; or a fourth unit, configured
to use a maximum value of QoS parameters of all subscribed APNs as the
QoS parameter of the alias APN, wherein all the subscribed APNs
correspond to the alias APN.

12. The device according to claim 10, wherein the device further
comprises: a first sending module, configured to send a create session
request to a serving gateway entity (SGW) or a packet data gateway entity
(PGW) corresponding to the alias APN, wherein the create session request
contains the alias APN and the QoS parameter of the alias APN; and a
second sending module, configured to send the alias APN and the QoS
parameter of the alias APN to the UE.

13. The device according to claim 10, wherein the device further
comprises: a third sending module, configured to send the alias APN and
the QoS parameter of the alias APN to the mobility management network
element through a create session response message, wherein the mobility
management network element sends the alias APN and the QoS parameter of
the alias APN to the UE.

14. The device according to claim 10, wherein the device further
comprises: a fourth sending module, configured to send the alias APN and
the QoS parameter of the alias APN to an SGW or a PGW through an
IP-connectivity access network IP-CAN session establishment procedure
message, so that the SGW or the PGW sends the alias APN and the QoS
parameter of the alias APN to the mobility management network element
through a create session response message, and the mobility management
network element sends the alias APN and the QoS parameter of the alias
APN to the UE.

Description:

CROSS-REFERENCE TO RELATED APPLICATIONS

[0001] This application is a continuation of International Application No.
PCT/CN2011/073108, filed on Apr. 21, 2011, which claims priority to
Chinese Patent Application No. 201010270336.1, filed on Aug. 30, 2010,
both of which are hereby incorporated by reference in their entireties.

FIELD OF THE INVENTION

[0002] The present invention relates to mobile communications
technologies, and in particular, to a method and device for processing a
quality of service (Quality of Service, QoS) parameter in a subscription
service combination scenario.

BACKGROUND OF THE INVENTION

[0003] In order to enhance the competitiveness of future networks, the
3rd Generation Partnership Project (3rd Generation Partnership
Project, 3GPP) provides a brand-new evolved network, which is named a
system architecture evolution (System Architecture Evolution, SAE)
system. The SAE system includes: an evolved universal mobile
telecommunication system (Universal Mobile Telecommunication System,
UMTS) terrestrial radio access network (Evolved UMTS Terrestrial Radio
Access Network, EUTRAN), which is used to implement all radio-related
functions of the evolved network; a mobility management entity (Mobility
Management Entity, MME), which is responsible for mobility management of
a control plane, including user context management and mobility state
management as well as assignment of a temporary user identity; a serving
gateway entity (Serving Gateway, SGW), which is a user plane anchor point
between 3GPP access systems, and terminates an interface of the EUTRAN; a
packet data gateway entity (PDN Gateway, PGW), which is a user plane
anchor point between a 3GPP access system and a non-3GPP access system,
and terminates an interface with an external packet data network (Packet
Data Network, PDN); a policy and charging rule function entity (Policy
and Charging Rule Function, PCRF), which is used to implement functions
of policy control decision and flow based charging control; and a home
subscriber server (HSS, Home Subscriber Server), which is used to store
subscription information of a user.

[0004] For a QoS parameter of the network, an access point name aggregate
maximum bit rate (Access Point Name Aggregate Maximum Bit Rate, APN-AMBR)
parameter is introduced in the SAE. All non guaranteed bit rate (Non
Guaranteed Bit Rate, Non-GBR) bearers of the same APN share an APN-AMBR,
which is used to perform traffic control for all the Non-GBR bearers
established by the APN. The PGW implements traffic control of uplink and
downlink APN-AMBR, and a user equipment (User Equipment, UE) implements
traffic control of the uplink APN-AMBRs.

[0005] With the development of network operation, services of operators
may need to be adjusted. For example, multiple similar APN services are
adjusted to provide service for a specific PGW, that is, multiple similar
APN services need to be mapped to an APN corresponding to a specific PGW.
The operators, due to service acquisition or merger, may also have a need
of mapping multiple similar APN services of users to a specific APN.

[0006] After subscribed users are combined, multiple APN services of the
users may be mapped to one alias APN. However, after multiple APN
services are mapped to one alias APN, a QoS parameter of the alias APN
cannot be determined.

SUMMARY OF THE INVENTION

[0007] Embodiments of the present invention provide a method and device
for processing a QoS parameter in a subscription service combination
scenario, to implement processing of a QoS parameter of an alias APN in
the subscription service combination scenario.

[0008] An embodiment of the present invention provides a method for
processing a QoS parameter in a subscription service combination
scenario, including:

[0009] determining a subscribed APN corresponding to an alias access point
name APN, where the alias APN is obtained by a mobility management
network element according to an APN in an access request of a UE and
according to acquired correspondence between a subscribed APN and an
alias APN of the UE; and

[0010] determining a QoS parameter of the alias APN according to a QoS
parameter of the subscribed APN.

[0011] An embodiment of the present invention provides a device for
processing a QoS parameter in a subscription service combination
scenario, including:

[0012] an acquisition module, configured to determine a subscribed APN
corresponding to an alias access point name APN, where the alias APN is
obtained by a mobility management network element according to an APN in
an access request of a UE and according to acquired correspondence
between a subscribed APN and an alias APN of the UE; and

[0013] a determination module, configured to determine a QoS parameter of
the alias APN according to a QoS parameter of the subscribed APN.

[0014] In the method provided by the embodiment of the present invention,
a QoS parameter of an alias APN is obtained according to a QoS parameter
of a subscribed APN corresponding to the alias APN or the QoS parameter
of the alias APN is statically configured, thereby implementing
processing of the QoS parameter of the alias APN in the subscription
service combination scenario.

BRIEF DESCRIPTION OF THE DRAWINGS

[0015] To describe the technical solutions in the embodiments of the
present invention more clearly, the following briefly introduces
accompanying drawings for describing the embodiments. Apparently, the
accompanying drawings in the following description show some embodiments
of the present invention, and a person of ordinary skill in the art may
still derive other drawings from these accompanying drawings without
creative efforts.

[0016] FIG. 1 is a schematic flow chart of a method according to a first
embodiment of the present invention;

[0017] FIG. 2 is a schematic flow chart of a method according to a second
embodiment of the present invention;

[0018] FIG. 3 is a schematic diagram of implementation scheme 1 for
determining a QoS parameter of an alias APN according to an embodiment of
the present invention;

[0019]FIG. 4 is a schematic diagram of implementation scheme 2 for
determining a QoS parameter of an alias APN according to an embodiment of
the present invention;

[0020] FIG. 5 is a schematic diagram of implementation scheme 3 for
determining a QoS parameter of an alias APN according to an embodiment of
the present invention;

[0021] FIG. 6 is a schematic diagram of implementation scheme 4 for
determining a QoS parameter of an alias APN according to an embodiment of
the present invention;

[0022] FIG. 7 is a schematic flow chart of a method according to a third
embodiment of the present invention;

[0023] FIG. 8 is a schematic flow chart of a method according to a fourth
embodiment of the present invention;

[0024]FIG. 9 is a schematic flow chart of a method according to a fifth
embodiment of the present invention;

[0025] FIG. 10 is a schematic flow chart of a method according to a sixth
embodiment of the present invention;

[0026] FIG. 11 is a schematic flow chart of a method according to a
seventh embodiment of the present invention;

[0027]FIG. 12 is a schematic structural diagram of a device according to
an eighth embodiment of the present invention;

[0028] FIG. 13 is a schematic structural diagram of a device according to
a ninth embodiment of the present invention;

[0029] FIG. 14 is a schematic structural diagram of a device according to
a tenth embodiment of the present invention; and

[0030] FIG. 15 is a schematic structural diagram of a device according to
an eleventh embodiment of the present invention.

DETAILED DESCRIPTION OF THE EMBODIMENTS

[0031] To make objectives, technical solutions, and advantages of
embodiments of the present invention clearer, the following clearly and
completely describes the technical solutions in the embodiments of the
present invention with reference to the accompanying drawings in the
embodiments of the present invention. Apparently, the described
embodiments are merely a part rather than all of the embodiments of the
present invention. All other embodiments obtained by a person of ordinary
skill in the art based on the embodiments of the present invention
without creative efforts shall fall within the protection scope of the
present invention.

[0032] FIG. 1 is a schematic flow chart of a method according to a first
embodiment of the present invention. The method includes:

[0033] Step 11: Determine a subscribed APN corresponding to an alias APN,
where the alias APN is obtained by a mobility management network element
according to an APN in an access request of a UE and according to
acquired correspondence between a subscribed APN and an alias APN of the
UE.

[0034] Step 12: Determine a QoS parameter of the alias APN according to a
QoS parameter of the subscribed APN.

[0035] The QoS parameter may specifically be an APN-AMBR.

[0036] In the embodiment of the present invention, the mobility management
network element may be an MME, and may also be a serving GPRS support
node (Serving GPRS Support Node, SGSN).

[0037] In one aspect, in an example where the QoS parameter is an
APN-AMBR, four schemes shown in Table 1 may be adopted for determining
the QoS parameter of the alias APN according to the QoS parameter of the
subscribed APN.

TABLE-US-00001
TABLE 1
Serial
number Scheme key point
Scheme 1 An APN-AMBR of an alias APN is an accumulated value
of APN-AMBRs of already activated subscribed APNs
corresponding to the alias APN
Scheme 2 An APN-AMBR of an alias APN is a maximum value of
APN-AMBRs of already activated subscribed APNs
corresponding to the alias APN
Scheme 3 An APN-AMBR of an alias APN is an accumulated value
of APN-AMBRs of all subscribed APNs corresponding
to the alias APN
Scheme 4 An APN-AMBR of an alias APN is a maximum value of
APN-AMBRs of all subscribed APNs corresponding to
the alias APN

[0038] It can be understood that, the four implementation schemes are just
examples, and the embodiments of the present invention are not limited to
the four implementations.

[0039] In addition, the QoS parameter of the alias APN may also be
statically configured. For example, a value of an APN-AMBR of an alias
APN corresponding to a subscribed APN, for example, APN1, is statically
configured to APN-AMBR1. Then, when APN1 is activated, after alias APN
mapping (mapping APN1 to the alias APN corresponding to APN1), a value of
the APN-AMBR of the alias APN corresponding to APN1 is determined as
APN-AMBR1.

[0040] In another aspect, an executor of the foregoing steps may be an
MME, an SGW/PGW or a PCRF.

[0041] In still another aspect, the foregoing steps may be executed in an
Attach procedure or a UE Request PDN Connectivity procedure.

[0042] Reference may be made to the following embodiments for the
foregoing corresponding situations.

[0043] In this embodiment, a QoS parameter of an alias APN is obtained
according to a QoS parameter of a subscribed APN corresponding to the
alias APN or the QoS parameter of the alias APN is statically configured,
thereby implementing processing of the QoS parameter of the alias APN in
the subscription service combination scenario.

[0044] FIG. 2 is a schematic flow chart of a method according to a second
embodiment of the present invention. An example where an executor is an
MME and the method is executed in an attach (attach) procedure is used in
this embodiment. Referring to FIG. 2, this embodiment includes:

[0045] Step 201: A user equipment (User Equipment, UE) sends an attach
request (Attach Request) message to an MME through an evolved base
station (eNB), where the Attach Request message includes an APN of the
UE.

[0046] Step 202: The MME performs authentication with the UE and an HSS,
to acquire subscription data.

[0047] Correspondence between a subscribed APN and an alias APN of the UE
may be configured in the HSS and saved in the HSS as a part of the
subscription data. There may be one or more subscribed APNs of the UE,
and there may also be one or more alias APNs corresponding to the
subscribed APNs of the UE.

[0048] The subscription data acquired by the MME from the HSS includes a
subscribed APN corresponding to the UE and correspondence between the
subscribed APN and an alias APN. When an APN-AMBR of the subscribed APN
is adopted to determine an APN-AMBR of the alias APN, the APN-AMBR of the
subscribed APN needs to be acquired.

[0049] Step 203: The MME performs alias mapping, and determines an
APN-AMBR of the alias APN.

[0050] According to the APN in the received attach request and according
to the acquired correspondence between the subscribed APN and the alias
APN, the MME determines the alias APN corresponding to the APN in the
attach request. For example, when the attach request message sent by the
UE to the eNB contains APN1, and an alias APN corresponding to APN1 in
the subscription data acquired when the MME performs authentication is an
Alias APN, the MME maps APN1 to the Alias APN.

[0051] When a QoS parameter of the subscribed APN is adopted to determine
a QoS parameter of the alias APN, one of the four schemes shown in Table
1 may be adopted for implementation. That the alias APN is an Alias APN
and subscribed APNs corresponding to the alias APN are APN1, APN2, . . .
, and APNn is taken as an example.

[0052] Specifically, for scheme 1, referring to FIG. 3, FIG. 3 is a
schematic diagram of implementation scheme 1 for determining a QoS
parameter of an alias APN according to an embodiment of the present
invention. In a service procedure, an APN-AMBR corresponding to the alias
APN is an accumulated value of subscribed APN-AMBRs of an already
activated subscribed APN and an APN being activated currently. In the
service procedure, the value of the APN-AMBR corresponding to the alias
APN gradually increases along with the increase of activated subscribed
APNs.

[0053] For scheme 2, referring to FIG. 4, FIG. 4 is a schematic diagram of
implementation scheme 2 for determining a QoS parameter of an alias APN
according to an embodiment of the present invention. In a service
procedure, an APN-AMBR corresponding to the alias APN is a maximum value
of APN-AMBRs of an already activated subscribed APN and an APN being
activated currently. In the service procedure, the value of the APN-AMBR
corresponding to the alias APN may be changed along with the increase of
the activated subscribed APNs.

[0054] For scheme 3, referring to FIG. 5, FIG. 5 is a schematic diagram of
implementation scheme 3 for determining a QoS parameter of an alias APN
according to an embodiment of the present invention. In a service
procedure, an APN-AMBR corresponding to the alias APN is an accumulated
value of APN-AMBRs of all corresponding subscribed APNs in alias APN
mapping, and remains unchanged in the service procedure.

[0055] For scheme 4, referring to FIG. 6, FIG. 6 is a schematic diagram of
implementation scheme 4 for determining a QoS parameter of an alias APN
according to an embodiment of the present invention. In a service
procedure, an APN-AMBR corresponding to the alias APN is a maximum value
of APN-AMBRs of all corresponding subscribed APNs in alias APN mapping,
and remains unchanged in the service procedure.

[0056] In addition, a static configuration manner may also be adopted. For
example, when APN1 is activated (APN1 may be carried in the attach
request message, and may also be set in the subscription data of the UE
by default), and the alias APN that corresponds to APN1 and is acquired
from the HSS is the Alias APN, the value of the APN-AMBR of the Alias APN
is directly configured to APN-AMBR1.

[0057] Step 204: The MME sends a create session request (Create Session
Request) to an SGW/PGW, where the request contains the alias APN and the
APN-AMBR of the alias APN.

[0058] The SGW/PGW corresponds to the alias APN, and is used to create an
upstream bearer.

[0059] The value of the APN-AMBR of the alias APN may be obtained
according to the APN-AMBR of the subscribed APN, and may also be obtained
through static configuration.

[0063] Step 208: The MME sends an attach accept (Attach Accept) message to
the UE through an eNB, where the message contains the alias APN and the
APN-AMBR of the alias APN.

[0064] Step 208 and steps 204-207 have a sequential relationship.

[0065] Step 209: The UE performs traffic control on the alias APN
according to the APN-AMBR of the alias APN.

[0066] Step 210: The UE sends an attach complete (Attach Complete) message
to the MME through the eNB, and completes creation of a downstream
bearer.

[0067] In this embodiment, the MME determines an APN-AMBR parameter of an
alias APN through an attach procedure, thereby guaranteeing the bandwidth
of the alias APN, protecting benefits of a user, and facilitating service
planning of an operator. Through implementation by the MME, effects on
other network elements caused by characteristics of the alias APN may be
reduced, and the operator may apply a local policy to perform QoS control
on a bearer.

[0068] FIG. 7 is a schematic flow chart of a method according to a third
embodiment of the present invention. An example where an executor is an
MME and the method is executed in a UE request PDN connectivity (UE
Request PDN Connectivity) procedure is used in this embodiment. Referring
to FIG. 7, this embodiment includes:

[0069] Step 701: A UE sends a PDN connectivity request (PDN Connectivity
Request) message to an MME through an eNB.

[0070] Step 702: The MME performs authentication with the UE and an HSS to
acquire subscription data.

[0071] The subscription data includes an APN-AMBR of a subscribed APN
corresponding to the UE, and correspondence between the subscribed APn
and an alias APN.

[0072] Step 703: The MME performs alias mapping, and determines an
APN-AMBR of the alias APN.

[0073] One of the four schemes shown in Table 1 may be adopted for
implementation, where reference may be made to step 203 for details,
which will not be described again.

[0074] Step 704: The MME sends a create session request (Create Session
Request) to an SGW/PGW, where the request contains the alias APN and the
APN-AMBR of the alias APN.

[0075] The SGW/PGW corresponds to the alias APN, and is used to create an
upstream bearer.

[0079] Step 708: The MME sends a PDN connectivity accept (PDN Connectivity
Accept) message to the UE through the eNB, where the message contains the
alias APN and the APN-AMBR of the alias APN.

[0080] Step 709: The UE performs traffic control on the alias APN
according to the value of the APN-AMBR of the alias APN.

[0081] Step 710: The UE sends a PDN connectivity complete (PDN
Connectivity Complete) message to the MME through the eNB, and completes
creation of a downstream bearer.

[0082] In this embodiment, the determined APN-AMBR of the alias APN is
obtained according to the APN-AMBR of the subscribed APN, and may also be
obtained through static configuration, where reference may be made to the
second embodiment for specific implementation.

[0083] In this embodiment, the MME determines an APN-AMBR parameter of an
alias APN through a UE Request PDN Connectivity procedure, thereby
guaranteeing the bandwidth of the alias APN, protecting benefits of a
user, and facilitating service planning of an operator. Through
implementation by the MME, effects on other network elements caused by
characteristics of the alias APN may be reduced, and the operator may
apply a local policy to perform QoS control on a bearer.

[0084] FIG. 8 is a schematic flow chart of a method according to a fourth
embodiment of the present invention. An example where an executor is an
SGW/PGW and the method is executed in an attach procedure is used in this
embodiment. Referring to FIG. 8, this embodiment includes:

[0085] Step 801: A UE sends an attach request (Attach Request) message to
an MME through an eNB.

[0086] Step 802: The MME performs authentication with the UE and an HSS to
acquire subscription data.

[0087] The subscription data includes an APN-AMBR of a subscribed APN
corresponding to the UE, and correspondence between the subscribed APn
and an alias APN.

[0088] Step 803: The MME performs alias mapping, and acquires, according
to the subscription data, the APN-AMBR of the subscribed APN
corresponding to the alias APN.

[0089] Step 804: The MME sends a create session request (Create Session
Request) to an SGW/PGW, where the request contains the alias APN and the
APN-AMBR of the subscribed APN.

[0090] The SGW/PGW corresponds to the alias APN, and is used to create an
upstream bearer.

[0091] If subscribed APNs are activated in turn, the APN-AMBR included in
the Create Session Request is an APN-AMBR of an APN being activated
currently.

[0094] One of the four schemes shown in Table 1 may be adopted for
implementation. In addition, a difference from execution by the MME lies
in that, during the execution by the MME, the APN-AMBR of the subscribed
APN may be acquired from subscription data of the HSS, while during
execution by the SGW/PGW, the APN-AMBR of the subscribed APN needs to be
transmitted by the MME to the SGW/PGW, and because determination of a
scheme needs to be performed according to an APN-AMBR of a subscribed APN
being activated currently and an APN-AMBRs of another subscribed APN,
each time an APN is activated, the SGW/PGW needs to save an APN-AMBR
transmitted from the MME, so as to perform calculation on the alias APN.

[0095] For example, if a manner of an accumulated value of activated APNs
is adopted, the SGW/PGW may accumulate the saved APN-AMBR and a currently
transmitted APN-AMBR to obtain a current APN-AMBR of the alias APN.

[0096] Step 807: The SGW/PGW performs traffic control on the alias APN
according to the APN-AMBR of the alias APN.

[0097] Step 808: The SGW/PGW returns a create session response (Create
Session Response) message to the MME, where the message contains the
alias APN and the APN-AMBR of the alias APN.

[0098] Step 809: The MME sends an attach accept (Attach Accept) message to
the UE through the eNB, where the message contains the alias APN and the
APN-AMBR of the alias APN.

[0099] Step 810: The UE performs traffic control on the alias APN
according to a value of the APN-AMBR of the alias APN.

[0100] Step 811: The UE sends an attach complete (Attach Complete) message
to the MME through the eNB, and completes creation of a downstream
bearer.

[0101] In this embodiment, the determining the APN-AMBR of the alias APN
is obtained according to the APN-AMBR of the subscribed APN, and may also
be obtained through static configuration, where reference may be made to
the second embodiment for specific implementation.

[0102] In this embodiment, the SGW/PGW determines an APN-AMBR parameter of
an alias

[0103] APN through an attach procedure, thereby guaranteeing the bandwidth
of the alias APN, protecting benefits of a user, and facilitating service
planning of an operator. During implementation by the SGW/PGW, the
SGW/PGW may perform QoS policy decision in a centralized way without
activating a PCC, thereby avoiding unauthorized changes of QoS in a
roaming scenario.

[0104]FIG. 9 is a schematic flow chart of a method according to a fifth
embodiment of the present invention. An example where an executor is an
SGW/PGW and the method is executed in a UE Request PDN Connectivity
procedure is used in this embodiment. Referring to FIG. 9, this
embodiment includes:

[0105] Step 901: A UE sends a PDN connectivity request (PDN Connectivity
Request) message to an MME through an eNB.

[0106] Step 902: The MME performs authentication with the UE and an HSS to
acquire subscription data.

[0107] The subscription data includes an APN-AMBR of a subscribed APN
corresponding to the UE, and correspondence between the subscribed APn
and an alias APN.

[0108] Step 903: The MME performs alias mapping, and acquires the APN-AMBR
of the subscribed APN corresponding to the alias APN according to the
subscription data.

[0109] Step 904: The MME sends a create session request (Create Session
Request) to an SGW/PGW, where the request contains the alias APN and the
APN-AMBR of the subscribed APN.

[0110] The SGW/PGW corresponds to the alias APN, and is used to create an
upstream bearer.

[0111] If subscribed APNs are activated in turn, the APN-AMBR contained in
the create session request is an APN-AMBR of an APN being activated
currently.

[0114] One of the four schemes shown in Table 1 may be adopted for
implementation, where reference may be made to step 806 for details.

[0115] Step 907: The SGW/PGW performs traffic control on the alias APN
according to the APN-AMBR of the alias APN.

[0116] Step 908: The SGW/PGW returns a create session response (Create
Session Response) message to the MME, where the message contains the
alias APN and the APN-AMBR of the alias APN.

[0117] Step 909: The MME sends a PDN connectivity accept (PDN Connectivity
Accept) message to the UE through the eNB, where the message contains the
alias APN and the APN-AMBR of the alias APN.

[0118] Step 910: The UE performs traffic control on the alias APN
according to a value of the APN-AMBR of the alias APN.

[0119] Step 911: The UE sends a PDN connectivity complete (PDN
Connectivity Complete) message to the MME through the eNB, and completes
creation of a downstream bearer.

[0120] In this embodiment, the determining the APN-AMBR of the alias APN
is obtained according to the APN-AMBR of the subscribed APN, and may also
be obtained through static configuration, where reference may be made to
the second embodiment for specific implementation.

[0121] In this embodiment, the SGW/PGW determines an APN-AMBR parameter of
an alias APN through a UE Request PDN Connectivity procedure, thereby
guaranteeing the bandwidth of the alias APN, protecting benefits of a
user, and facilitating service planning of an operator. During
implementation by the SGW/PGW, the SGW/PGW may perform QoS policy
decision in a centralized way without activating a PCC, thereby avoiding
unauthorized changes of QoS in a roaming scenario.

[0122] FIG. 10 is a schematic flow chart of a method according to a sixth
embodiment of the present invention. An example where an executor is a
PCRF and the method is executed in an attach procedure is used in this
embodiment. Referring to FIG. 10, this embodiment includes:

[0123] Step 1001: A UE sends an attach request (Attach Request) message to
an MME through an eNB.

[0124] Step 1002: The MME performs authentication with the UE and an HSS
to acquire subscription data.

[0125] The subscription data includes an APN-AMBR of a subscribed APN
corresponding to the UE, and correspondence between the subscribed APn
and an alias APN.

[0126] Step 1003: The MME performs alias mapping, and acquires the
APN-AMBR of the subscribed APN corresponding to the alias APN according
to the subscription data.

[0127] Step 1004: The MME sends a create session request (Create Session
Request) to a PGW, where the request contains the alias APN and the
APN-AMBR of the subscribed APN.

[0128] The PGW corresponds to the alias APN, and is used to create an
upstream bearer.

[0129] If subscribed APNs are activated in turn, the APN-AMBR contained in
the create session request is an APN-AMBR of an APN being activated
currently.

[0130] Step 1005: The PGW sends an IP-CAN session establishment procedure
(IP-CAN Session Establishment procedure) message to a PCRF, where the
message contains the alias APN and the APN-AMBR of the subscribed APN.

[0131] Step 1006: The PCRF determines an APN-AMBR of the alias APN.

[0132] One of the four schemes shown in Table 1 may be adopted for
implementation. In addition, similar to execution by an SGW/PGW, an
APN-AMBR transmitted from the MME through the SGW/PGW needs to be saved,
so as to perform calculation on the alias APN.

[0133] For example, if a manner of an accumulated value of activated APNs
is adopted, the PCRF may accumulate the saved APN-AMBR and a currently
transmitted APN-AMBR to obtain a current APN-AMBR of the alias APN.

[0134] Step 1007: The PCRF sends an IP-CAN session establishment procedure
(IP-CAN Session Establishment procedure) message to an SGW/PGW, where the
message contains the alias APN and the APN-AMBR of the alias APN.

[0135] Step 1008: The SGW/PGW performs traffic control on the alias APN
according to the APN-AMBR of the alias APN.

[0136] Step 1009: The SGW/PGW returns a create session response (Create
Session Response) message to the MME, where the message contains the
alias APN and the APN-AMBR of the alias APN.

[0137] Step 1010: The MME sends an attach accept (Attach Accept) message
to the UE through the eNB, where the message contains the alias APN and
the APN-AMBR of the alias APN.

[0138] Step 1011: The UE performs traffic control on the alias APN
according to a value of the APN-AMBR of the alias APN.

[0139] Step 1012: The UE sends an attach complete (Attach Complete)
message to the MME through the eNB, and completes creation of a
downstream bearer.

[0140] In this embodiment, the determining the APN-AMBR of the alias APN
is obtained according to the APN-AMBR of the subscribed APN, and may also
be obtained through static configuration, where reference may be made to
the second embodiment for specific implementation.

[0141] In this embodiment, the PCRF determines an APN-AMBR parameter of an
alias APN through an attach procedure, thereby guaranteeing the bandwidth
of the alias APN, protecting benefits of a user, and facilitating service
planning of an operator. During the implementation by the PCRF, the PCRF
may perform QoS policy decision in a centralized way without activating a
PCC, thereby avoiding unauthorized changes of QoS in a roaming scenario.

[0142] FIG. 11 is a schematic flow chart of a method according to a
seventh embodiment of the present invention. An example where an
execution subject is a PCRF and the method is executed in a UE Request
PDN Connectivity procedure is used in this embodiment. Referring to FIG.
11, this embodiment includes:

[0143] Step 1101: A UE sends a PDN connectivity request (PDN Connectivity
Request) message to an MME through an eNB.

[0144] Step 1102: The MME performs authentication with the UE and an HSS
to acquire subscription data.

[0145] The subscription data includes an APN-AMBR of a subscribed APN
corresponding to the UE, and correspondence between the subscribed APn
and an alias APN.

[0146] Step 1103: The MME performs alias mapping, and acquires the
APN-AMBR of the subscribed APN corresponding to the alias APN according
to the subscription data.

[0147] Step 1104: The MME sends a create session request (Create Session
Request) to an SGW/PGW, where the request contains the alias APN and the
APN-AMBR of the subscribed APN.

[0148] The SGW/PGW corresponds to the alias APN, and is used to create an
upstream bearer.

[0149] If subscribed APNs are activated in turn, the APN-AMBR included in
the Create Session Request is an APN-AMBR of an APN being activated
currently.

[0150] Step 1105: The SGW/PGW sends an IP-CAN session establishment
procedure (IP-CAN Session Establishment procedure) message to a PCRF,
where the message contains the alias APN and the APN-AMBR of the
subscribed APN.

[0151] Step 1106: The PCRF determines an APN-AMBR of the alias APN.

[0152] One of the four schemes shown in Table 1 may be adopted for
implementation. In addition, similar to execution by the SGW/PGW, the
APN-AMBR transmitted from the MME through the SGW/PGW needs to be saved,
so as to perform calculation on the alias APN.

[0153] For example, if a manner of an accumulated value of activated APNs
is adopted, the PCRF may accumulate the saved APN-AMBR and a currently
transmitted APN-AMBR to obtain a current APN-AMBR of the alias APN.

[0154] Step 1107: The PCRF sends an IP-CAN session establishment procedure
(IP-CAN Session Establishment procedure) message to the SGW/PGW, where
the message contains the alias APN and the APN-AMBR of the alias APN.

[0155] Step 1108: The SGW/PGW performs traffic control on the alias APN
according to the APN-AMBR of the alias APN.

[0156] Step 1109: The SGW/PGW returns a create session response (Create
Session Response) message to the MME, where the message contains the
alias APN and the APN-AMBR of the alias APN.

[0157] Step 1110: The MME sends a PDN connectivity accept (PDN
Connectivity Accept) message to the UE through the eNB, where the message
contains the alias APN and the APN-AMBR of the alias APN.

[0158] Step 1111: The UE performs traffic control on the alias APN
according to a value of the APN-AMBR of the alias APN.

[0159] Step 1112: The UE sends a PDN connectivity complete (PDN
Connectivity Complete) message to the MME through the eNB, and completes
creation of a downstream bearer.

[0160] In this embodiment, the determining the APN-AMBR of the alias APN
is obtained according to the APN-AMBR of the subscribed APN, and may also
be obtained through static configuration, where reference may be made to
the second embodiment for specific implementation.

[0161] In this embodiment, the PCRF determines an APN-AMBR parameter of an
alias APN through a UE Request PDN Connectivity procedure, thereby
guaranteeing the bandwidth of the alias APN, protecting benefits of a
user, and facilitating service planning of an operator. During
implementation by the SGW/PGW, the SGW/PGW may perform QoS policy
decision in a centralized way without activating a PCC, thereby avoiding
unauthorized changes of QoS in a roaming scenario.

[0162] In the foregoing embodiments, four implementation schemes are
provided for determining a QoS parameter of an alias APN. However, it can
be understood that, the embodiments are not limited to the four
implementation schemes, and other schemes may further be adopted for
determining the QoS parameter of the alias APN, and after the QoS
parameter of the alias APN is determined in other manners, the method may
be executed still according to the foregoing interaction procedure.

[0163]FIG. 12 is a schematic structural diagram of a device according to
an eighth embodiment of the present invention. The device includes an
acquisition module 121 and a determination module 122. The acquisition
module 121 is configured to determine a subscribed APN corresponding to
an alias APN, where the alias APN is obtained by a mobility management
network element according to an APN in an access request of a UE and
according to acquired correspondence between a subscribed APN and an
alias APN of the UE. The determination module 122 is configured to
determine a QoS parameter of the alias APN according to a QoS parameter
of the subscribed APN.

[0164] The determination module 122 may include a first unit 1221, a
second unit 1222, a third unit 1223 and a fourth module 1224. The first
unit 1221 is configured to use an accumulated value as the QoS parameter
of the alias APN, where the accumulated value is an accumulated value of:
a QoS parameter of a subscribed APN that is being activated currently and
corresponds to the alias APN, and a QoS parameter of an already activated
subscribed APN corresponding to the alias APN. The second unit 1222 is
configured to use a maximum value as the QoS parameter of the alias APN,
where the maximum value is a maximum value of: a QoS parameter of a
subscribed APN that is being activated currently and corresponds to the
alias APN, and a QoS parameter of an already activated subscribed APN
corresponding to the alias APN. The third unit 1223 configured to use an
accumulated value of QoS parameters of all subscribed APNs as the QoS
parameter of the alias APN, where all the subscribed APNs correspond to
the alias APN. The fourth unit 1224 is configured to use a maximum value
of QoS parameters of all subscribed APNs as the QoS parameter of the
alias APN, where all the subscribed APNs correspond to the alias APN.

[0165] In this embodiment, a QoS parameter of an alias APN is obtained
according to a QoS parameter of a subscribed APN corresponding to the
alias APN, which implements processing of the QoS parameter of the alias
APN in a subscription service combination scenario.

[0166] FIG. 13 is a schematic structural diagram of a device according to
a ninth embodiment of the present invention. The device described in this
embodiment is an MME, including an acquisition module 131 and a
determination module 132. The acquisition module 131 and the
determination module 132 may be the determination module in FIG. 12. In
addition, the device in this embodiment further includes a first sending
module 133 and a second sending module 134. The first sending module 133
is configured to send a create session request to a serving gateway
entity SGW or a packet data gateway entity PGW corresponding to the alias
APN, where the create session request contains the alias APN and the QoS
parameter of the alias APN. The second sending module 134 is configured
to send the alias APN and the QoS parameter of the alias APN to the UE.
In addition, the acquisition module 131 may be specifically configured to
acquire the QoS parameter of the subscribed APN from an HSS.

[0167] In this embodiment, the MME determines an APN-AMBR parameter of an
alias APN, thereby guaranteeing the bandwidth of the alias APN,
protecting benefits of a user, and facilitating service planning of an
operator.

[0168] FIG. 14 is a schematic structural diagram of a device according to
a tenth embodiment of the present invention. The device described in this
embodiment is an SGW or a PGW, including an acquisition module 141 and a
determination module 142. The acquisition module 141 and the
determination module 142 may be the determination module in FIG. 12. In
addition, the device in this embodiment further includes a third sending
module 143. The third sending module 143 is configured to send the alias
APN and the QoS parameter of the alias APN to the mobility management
network element through a create session response message, and the
mobility management network element sends the alias APN and the QoS
parameter of the alias APN to the UE. In addition, the acquisition module
141 may be specifically configured to acquire the QoS parameter of the
subscribed APN from a create session request sent by the MME.

[0169] In this embodiment, the SGW/PGW determines an APN-AMBR parameter of
an alias APN, thereby guaranteeing the bandwidth of the alias APN,
protecting benefits of a user, and facilitating service planning of an
operator.

[0170] FIG. 15 is a schematic structural diagram of a device according to
an eleventh embodiment of the present invention. The device in this
embodiment is a PCRF, including an acquisition module 151 and a
determination module 152. The acquisition module 151 and the
determination module 152 may be the determination module in FIG. 12. In
addition, the device in this embodiment further includes a fourth sending
module 153. The fourth sending module 153 is configured to send the alias
APN and the QoS parameter of the alias APN to an SGW or a PGW through an
IP-connectivity access network IP-CAN session establishment procedure
message, so that the SGW or PGW sends the alias APN and the QoS parameter
of the alias APN to the mobility management network element through a
create session response message, and the mobility management network
element sends the alias APN and the QoS parameter of the alias APN to the
UE. In addition, the acquisition module 151 may be specifically
configured to acquire the QoS parameter of the subscribed APN from the
IP-CAN Session Establishment procedure message sent by the SGW/PGW.

[0171] In this embodiment, the PCRF determines an APN-AMBR parameter of an
alias APN, thereby guaranteeing the bandwidth of the alias APN,
protecting benefits of a user, and facilitating service planning of an
operator.

[0172] Persons of ordinary skill in the art may understand that all or
part of the steps in the foregoing method embodiments may be implemented
by a program instructing relevant hardware. The program may be stored in
a computer readable storage medium. When the program runs, the steps of
the foregoing method embodiments are performed. The storage medium
include various media capable of storing program codes, such as a ROM, a
RAM, a magnetic disk, or an optical disk.

[0173] Finally, it should be noted that the foregoing embodiments of the
present invention are merely intended for describing the technical
solutions of the present invention other than limiting the present
invention. Although the present invention is described in detail with
reference to the foregoing embodiments, persons of ordinary skill in the
art should understand that they may still make modifications to the
technical solutions described in the foregoing embodiments or make
equivalent substitutions to some technical features of the technical
solutions, without making essence of corresponding technical solutions
depart from the spirit and scope of the technical solutions of the
embodiments of the present invention.